Signal



A. M. WARD.

SIGNAL.

APPLICATION FILED OCT- 21. 19111.

Patented July 22, 1919.

ALBERT M. WARD, OF ROCHESTER, NEW YORK.

SIGNAL.

Specification of Letters Patent.

Patented July 22, 1919.

Application filed October 21, 1918. Serial No. 259,073.

To all whom it may concern:

Be it known that I, ALBERT M. WARD, a citizen of the United States, andresident of Rochester, in the county of Monroe and State of New York,have invented certain new and useful Improvements in Signals, of whichthe following is a specification.

The present invention relates to signals and more particularly to thetype employing a plurality of electrically operated signaling elementsin a single structure, an object of this invention being to provide aconstruction in which a single make-and-break de vice controls aplurality of circuits of a. plurality of signaling devices.

To this and other ends, the invention consists of certain parts andcombinations of parts all of which will be hereinafter described, thenovel features being pointed out in the appended claims.

In the .drawings:

Figure 1 is a view of a signal embodying the present invention, part ofone of the bells being broken away to disclose another bell beneath thesame;

Fig. 2 is a side view of the structure shown in Fig. 1;

Fig. 3 is a detail sectional view of the make-and-break device whichcontrols two circuits;

Fig. 4 is a diagrammatic View of the circuits employed in connectionwith the signal illustrated in Figs. 1 and 2; and

Fig. 5 is a diagrammatic view of the circuits of another embodiment ofthe invention.

Referring more particularly to the drawings, 1 indicates a base memberfrom which rises a standard 2 on which two signaling devices or bells 3and 4 are arranged in superposed relation, the uppermost bell being ofgreater diameter than the under bell. Also arranged upon the base member1 are two coils 5 and 6 preferably having their axes parallel, and acommon pole piece 7 at one end, their other ends each being providedwith separated pole pieces indicated at L 8 and 9.

Preferably arranged on opposite sides of the coils, with their planesparallel with the axes of the coils, are two armatures 10 and 11, saidarmatures being pivoted at 12 and 13, respectively, to the common pole 7while their swinging or free ends coiiperate with the separated polepieces'8 and 9, respectively. Extended from said armatures are strikers14 and 15- for cooperating, respectively, with the bells 3 and 4, andforming two signaling devices. A coil spring 16 has its opposite endssecured to extensions 17 on the armatures '10 and 11, and serves to holdthe swinging ends of the armatures away from; the pole pieces 8 and 9.Movement of the armature under'the action of the spring may be v variedby adjustable screws 20".

The control of the armatures of the two signaling devices is eflectedthrough a single make-and-break device which, in this instance, is inthe form of a spring arm 18 secured at 19 to the base plate, andextending laterally therefrom with one of its faces engaged by two arms20 which project laterally from the annatures 10 and 11 at one side ofand toward the center of the pole piece 7. An adjustable screw 21mounted in an insulator 22 of the pole piece 7 cooperates with thisspring contact 18. It is apparent that when either one of the armature's10 and 11 is drawn toward the respective pole pieces 8 or 9, thelaterally projecting.

arm 20 of said. armature will depress the spring contact 18 away fromthe adjustable contact 21, and thus break the circuit through themake-and-brealc device.

The circuits for controlling the two armatures 10 and 11 may embody twowindings 23 and 24 on the coils 5 and 6 connected by a conductor 25 tothe make-and-break device 18-21, which, by a conductor 26, leads to thebattery 27. The coils 23 and 24, are, respectively, connected to theopposite side of the battery by conductors 28 and 29, which lead,respectively, to the binding posts 30 and 31, and from the latterthrough the ush buttons 32- and 33, respectively, to the attery 27. Whenthe push button 32 ispressed, the coil 5 will beenergized and attractsthe armature '10, whereas when the push button 33 is pressed, the coil6- will be energized and the armature 11 will be operated. The makeandbreak device 18 21 being common to the circuits of both of the coils 5and 6 is operated when either one of the armatures is operated.

The signal may also employ a third signaling device in the form of abuzzer comprising an armature 34 pivoted '-at 35 so as to cooperate withthe separated pole pieces 8 and 9, and a'spring 36' may normally holdthis. armatureaway from said pole ieces, whereas amake-and-breakdevice 3may control the armature. The operation of this armature 34 is, in thisinstance, efi'ected through a circuit leading from a push button 38which is connected with one side of the battery 27, and with a bindingpost 39 on the base member 1.

i From this binding post the conductor 40 leads to a second winding 41in the coil 5, and a second winding 42 in the coil 6, said windingsbeing connected, and the latter winding beingconnected by a conductor 43with the make-and-break device 37. From the make-and-break device 37 thecircuit leads through the armature 34 to a conductor 44 which isconnected with the binding 0st 45 to which the conductor 26 leading romthe make-and'-'break device 18' is also connected. Pressure on the pushbutton 38 energizes both of the pole pieces 8 and 9, thus efl'ecting theoperation of the armature 34. The frequency of the vibration of thearmature 34 is greater than either of the armatures 10 and 11, and as aconsequence, notwithstanding the fact that the pole pieces 8 and 9 areenergized, the armatures 10 and 11 do not operate. Furthermore, thearmature 34, while being drawn to the pole pieces 8 and 9 when eitherone of the armatures 10 and 11 is operated, operates in synchronism withsaid armatures 10 and 11, and in this of the windings 23 and 24 andconnects with the make-and-break device 18-21., which,tl1rough thebinding post 45, connects with the opposite side of the battery 27 -'Thecircuit for the armature 34 embodies the push button 38 connecting withone side of the battery 27 and leading by a conductor 46' to themake-and-break device 37, thence through the armature 34 to a vconductor47, which connects with the wind ter to the opposite'side of the battery27.

In this construction, as'in the other construction,- the armature 34 hasa greater frequency of vibration than the armature 10,

and as a consequence there is no substantial movement of the armature 10when the armature 34 is operated, while when the armature 10 isoperated, the armature 34 operates in synchronism therewith and thebuzzing sound is not heard.

In all of the embodiments of the invention it will be seen that therehas been provided a construction in which a single make-andbreak deviceis common to the two circuits of two distinctive signaling devices. Theconstruction is-such that a symmetrical arrangement of the two signalingdevices is obtained with the make-and-break device symmetricallyconnected to both of said signaling devices. A circuit is provided whichpermits the ready operation of the two'signaling devices through thecommon makeand-break device.

"What I claim as my invention and desire to secure by Letters Patent isv 1. In a signal, the combination with two coils, independently movablearmatures for the coils, and two independently controllable circuits,one for each armature, of a single make-and-break device common to thetwo circuits and controlled by both of the armatures.

2. :In a signal, two coils arranged with their axes. parallel, twoannatures arranged on opposite sides of the coils and having portionsextending laterally toward each other at one end of the coils, and amakeand-break device operable by either one of said laterally extendedportions.

'3. In a signal, two coils arranged with their axes paralleltwo'armatures lying on opposite sides of the coils, a third armaturearranged at one end of the coils, two makeand-break devices, onecontrolled by the third armature and the other controlled by both of thefirst two named armatures, a circuit including at least one of the coilsand the make-and-break device of the third armature, a circuit includingone of the coils and the other make-and-break device, and a circuitincluding said last named make-and-break device and the other coil.

4. In a signal, two coils each having two windings, three armatures forthe coils, two make-and-break devices, one. controlled by one armatureand the other controlled by thevother two armatures, a circuit includingone of the windings of both of the coils and the make-and-break devicewhich is controlled by the single armature, a circuit in cluding theother Winding of one of the COIlS and the make-and-break device which iscontrolled by both arlnat-ures, and a circuitv including the otherwinding of the other ently movable armatures, one for each coil, asingle make-and-break device controlled by both annatnres, and twoindependently controllable circuits one for each armature each'includinga different coil and the makennd-break device.

ALBERT M. WARD.

